Gbaie shaking and dumping device



June 2, 1931. J, MURCH; 1,808,002

GRATE SHAKING AND DUMPING DEVICE Filed Feb. 23, 1929 INVENfO/g 3 JamesMarc/fie 7 By r CM A TTORNE Y5 Patented June 2, 1931 UNITED. STATESPATENT OF F ECE JAIVEES" BIURCHIE; F TRAVERSE CITY, MICHIGAN, .ASSIGNOKTO; HOLLAND" FURNACE GOMPANY,,OF HOLLAND; MICHIGAN GBATE SHARING. ANDDUMIEING DEVICE- Application filed February 23, I929. Seria1No..342,0731

Fifth, to provide an improved coupling of 1 the shaking means'to thegrate.

Sixth, toprovide improved lever means for dumping the grate.

Objects pertaining to. details and economies of construction andoperation will definitely 20 appear from the detailed description tofollow.

A structure which is a preferred embodiment of the invention isillustrated in the ac-' cOm-p'anying drawings, inwhich: 7

Fig. 1 is a. front elevation view of the ash pit front o'f'afurnace withmy improved grateshaking and dumping means in position, thedoor of theash pit being omitted.

Fig. 2 is a plan view of the dumpinggrate;

and my improved shaking and dumping means, the ash pit casing of thefurnace being omitted.

Fig. 3 is a vertical detail sectional elevation on the irregular line33- of Figs. land 2.

Fig. dis a detail elevation view ofthedumping; connection part inelevation similar to- Fig. 3, showingjthe same in dumped position.

Fig. 5 is a detail end elevation view of the A shaker lever from theright hand sideo-f'Figs.

1 and 2 s Fig. 6 is a de-tail'sectional elevation on line 66 of'Figs. 1and 2 ofthe dumping lever.

Fig; 7" is an enlarged detail secti'onaliview' through the swivel jointstructure taken on line 77 of Figs. 1 and 5.

The parts will be identified by their numerals of reference which arethe same in all the views. I I

1 is the ash pit casing of a furnace in the so usual form, having theflange doorway or frame 2'. 3 is the dumping grate. f is the rockingcross bar on which the grate 3 is pivoted at 5. 6 is the actuatingshaker arm secured to the downwardly extending lug 31 on: the grate 3'and projectingou-t to the ash pit door. This arm 6 is oscillated toshake the gratea-nd isdropped down to-dumpthe grate. The same is shownin operative position in Figs. 1,2 and 3- of the drawing, and in dumpedposition in Fig. 4.

7 is the shaker lever ful-crumed at" 71 to the extension of the basebracket IL 8 isthe: square reciprocating connectingbar from the; lever 7to shake the grate- It isprovided with. a: swivel. connection 81 adaptedto play in the vertical slot '72" in the shaker lever" 'Z. Theswivelconnection 81 is provided with. lateral pins 82 engaging in verticalslots 73 on the lever 7, so that the bar 8" which is square canbe'adjusted to differentpositionsandstill 70 be free to reciprocate.This is accomplished; by the adjusting lever 9 which is provided with asquare: hole 91 which engages. the recipro'cating bar 8; The bar 8 issupported in sleeve 10 carried by bracket 11 and is provided withupwardly extending cheek pieces 12, 13 which embrace the lever 9" andpermit it to be rocked through an angle of about13'5 to give the bar 8.nearly ahalf'turn. The lever 9 is held in vertical position preferablyby suitable stop, and, of course, when the grate is dropped the weightof the grate makes any stop unnecessary. 1 i

The inner end of the shaker bar 8' is pro vided with a U-shapedconnectionv 14 which, with the shaker bar 6, is shown in elevated.position so that the c ente'r'ofthe U which is oifset is above the bar.The sides of the U are recurved as seen in Fig. 3' to engage the sidesof the actuating bar 6 during the shaking operation and also to preventaccidental displacement of the slide connectiona.

Disposed on the bar 6 is the slide connection 15' which has an upwardlyprojecting'ear 151' perforated to pivot upon the central part of the Uconnection14. This slide15 is retained by stop; pin 16' from sliding;off the end of the bar 6 and is free to move alongthe bar inside thestop to accommodate the various adjustmeats and previde a sl idableeenneetimi to accommodate the oscillations of the shaker bar.

It will be seen that my construction is very simple and very effective.The shaker lever 7 is ordinarily manipulated back and forth and shakesthe ashes from the grate which is ordinarily all that is required.However, if clinkers accumulate or if for any reason it is desired todump the grate, it is simply done bymanipulatingthelever 9, turning theconnecting bar 8 through an angle of about 135 which is permitted by theswivel connection to the lever 7 Sufficient rocking motion can beimparted to the dump grate to insure that the whole contents has comedown.

The illustration of the grate herein is con ventional but will berecognized as the structure of the Holland Furnace Co. which appears inUnited States Letters Patent No. 1,332,353, March 2, 1920; It istherefore not deemed necessary to illustrate it more fully.

I desire to state that my improved grate shaking and dumping device canbe greatly modified in its details without departing from my invention.I have shown a swiveled reciprocating bar connection with a swivelconnection to the lever. Other means might be provided for permittingthe rocking of this bar, it only being necessary to project such a barfar enough through the wall of the furnace to permit of its beingmanipulated from the outside and still provide for reciprocatory motion,

however, can be greatly modified. Thesliding link connection on therocker bar might be otherwise secured and might even be pivoted inposition. I have shown it in a very simple form involving theminimum-amount of labor in its production.

Having thus described my invention, what I-claim as new and desire tosecure by. Letters Patent, is': j V

1. In a grate shaking and dumping device, the combination with the ashpit casing, a dumping grate therein having a shaker arm, of a basebracket outside said casing, a verticallyslotted shaking lever fulcrumedthereon, a square reciprocating grate shakerbar, a sleeve for the saidshaker bar connected to the side of the ash pit door frame, a swivelblock connection forsaid shaker bar to, said shaker lever slidablysupported in the slots of the said shaking lever, a dumping lever withsquare hole engaging said shaker bar for turn ing it to differentangles, transverse cheek pieces supported by said sleeve for receivingthe said dumping lever, an offset U-shaped connection at the inner endof said shaker bar with curved end portions for engaging the sides ofthe shaker arm, a slidable connection on the grate shaker arm withupwardly projecting perforated ear for engaging the central part of thesaid U-connection whereby the grate can be shaken by the shaker bar andI have provided a very simple connection for the inner end of the barThis,

can be dumped from the outside by rocking said bar and can be restoredand held to operative position, as specified.

2. In a grate shaking and dumping device, the combination with the ashpit casing, a dumping grate therein having a shaker arm, of a verticallyslotted shaking lever, a square reciprocating grate shaker bar, a swivelblock connection for said shaker bar to said shaking lever slidablysupported in the slots of the said shaking lever, an adjusting leverwith square hole engaging said shaker bar for adjusting it axially todifferent angles, an offset U-shaped connection at the inner end of saidshaker bar with curved end portions for engaging the sides of the shakerarm, a slidable connection on the grate shaker arm with upwardlyprojecting perforated ear for engaging the centralpart of the saidU-connection, whereby the grate can be shaken by the shaker bar and canbe dumped from the outside by rocking said bar and can be restored andheld to operative position, as specified.

3. In a grate shaking and dumping device, the combination with the ashpit casing, a dumping grate therein having a shaker arm, of a verticallyslotted shaking lever, a reciprocating grate shaker bar, a swivel blockconnection for said shaker bar to said shaking lever slidably supportedin the slots of the said shaking lever, means for adjusting the shakerbar axially to different angles, an olfset U-shaped connection at theinner end of said shaker bar with curved end portions for engaging thesides of the shaker arm; a slidable connection on the grate shaker armwith upwardly projecting perforated ear for engaging the central part ofthe said U-connection, whereby the grate can be shaken by the shaker barand can be dumped from the outside by rocking said bar and can berestored and held to operative position, as specified.

, 4.. In a grate shaking and dumping device,

the combination with the ash 'pit casing, a dumping grate thereon havinga shaker arm, of a vertically slotted shaking lever, a reciprocatinggrate shaker bar to said shaking lever, a swivel block connection forsaid shaker bar slidably supported in the slots of the said shakinglever,means for adjusting the shaker bar axially to'dilferent angles, anoffset pivotal connection at the inner end of said shaker bar, a movableconnection on said shaker arm for said pivotal connection whereby'thegratercan be shaken by the shaker bar or can be dumped from the outsideby rocking said bar and can be restored and held to operative position,asspecified.

5. In a grate shaking and dumping device, the combination with the ashpit casing, a dumping grate thereon having a shaker arm, of a verticallyslotted shaking lever, a square reciprocating grate shaker bar, a,sleeve for the said shaker bar connected to the side of the ash pit doorframe, a swivel block connection for said shaker bar to said shakinglever slidably supported in the slots of the -said shaking lever,dumping lever with square hole engaging said shaker bar for adjusting itaxially to diflerent angles, transverse cheek pieces supported by saidsleeve for receiving the said dumping lever, an ofiset pivotalconnection at the inner end of said shaker bar, a movable connection onsaid shaker arm for said pivotal connection whereby the grate can beshaken by the shaker bar or can be dumped from the outside by rockingsaid bar and can be restored and held to operative position, asspecified.

6. In a grate shaking and dumping device, the combination with the ashpit casing, a dumping grate therein having a shaker arm, of a verticallyslotted shaking lever, a reciprocating grate shaker bar, a sleeve forthe said shaker bar connected to the side of the ash pit doorway, aswivel block connection for said shaker bar to said shaking leverslidably supported in the slots of the said shaking lever, an adjustinglever with hole engaging said shaker bar for adjusting it I axially todifferent angles, transverse cheek pieces supported by said sleeve forreceiving the said adjusting lever, an offset pivotal connection at theinner end of said shaker bar, a movable connection on said shaker armfor said pivotal connection whereby the grate can be shaken by theshaker bar or can be dumped from the outside by rocking said bar and canbe restored and held to operativeposition, as specified.

7. In a grate shaking and dumping device, the combination with the ashpit casing, a dumping grate therein having a shaker arm, of a shakerlever fulcrumed at the outside, a reciprocating grate shaking bar, aswivel connection between said bar and the shaker lever, means foradjusting the swivel part of said shaker bar axially, an offset pivotalcon nection at the inner end of said shaker bar to the grate shaker arm,a movable connection on said shaker arm for saidpivotal connectionwhereby the grate can be shaken by the shaker bar or can be dumped fromthe outside by rocking said bar and can be restored and held tooperative position, as specified.

In witness whereof I have hereunto set my hand.

JAMES MURCHIE.

